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參數(shù)資料
| 型號： | C30662E |
| 廠商： | PerkinElmer Inc. |
| 英文描述： | InGaAs Avalanche Photodiode |
| 中文描述： | 銦鎵砷雪崩光電二極管 |
| 文件頁數(shù)： | 2/5頁 |
| 文件大?。?/td> | 160K |
| 代理商： | C30662E |
C30645E
C30662E
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Units
Diameter
80
200
um
Operating Voltage (Vop)
40
70
40
70
V
Temperature Coefficient of Vr for
Constant Gain
0.14
0.20
0.14
0.20
V / deg C
Responsivity (@1550nm)
9.3
9.3
A/W
Dark Current (@M=10)
50
150
nA
Spectral Noise Current (@M=10)
1.0
1.5
pA/rt Hz
Capacitance
1.25
2.5
pF
Bandwidth
1000
200
MHz
Quantum Efficiency (1300-1550nm)
75%
75%
Maximum Useable Gain (M)
10
20
10
20
InGaAs Avalanche Photodiode C30645E/C30662E Series
w w w . o p t o e l e c t r o n i c s . p e r k i n e l m e r . c o m
Table 1. Electrical Characteristics at T
A
= 22°C
1. A specific voltage, Vop, is supplied with each device. When the photodiode is operated at this voltage (at
22°C), the device will meet the electrical characteristic limits shown above. The voltage value will be within the
range of 40 to 70 volts.
2. The voltage dependence of the gain, for gains above 4, is given approximately by the following empirical
formula:
M =50/ (Vb-Vop). Rough approximate of the sensitivity.
3. Gain and quantum efficiency are not directly measurable quantities. The numbers quoted are estimated typical
values. Gain, quantum efficiency and responsivity are related by the following: R =
λ
M /1.24 where
λ
is the
wavelength in units of mm,
is the quantum efficiency, M is gain.
4. The detector n ise current / Hz
2
in = (2q (l
s
+l
b
M F)
)
Where: F =
k
eff
M + (1 -
k
eff
) (2-1/M) and l
s
and l
b
are the unmultiplied and multiplied portions of the dark
current, respectively. The total dark current is given by: It = l
s
+l
b
M.
However, since both
l
s
and l
b
are somewhat voltage dependent, and M is not directly measurable (see Note 3),
it is not usually possible to determine both
l
s
and l
b
unambiguously. Since system performance depends on
noise current and responsivity, these measurable quantities are the ones that have been specified.
5. Most devices can be operated at gains up to about 30 or more, but with values of noise current
correspondingly higher, as indicated by the discussion in Note 4 above.
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